body {
    position: relative;
}

.layui-input-inline textarea {
    width: 400px;
}

.msg {
    width: 460px;
    height: 250px;
    overflow: hidden;
    background-color: greenyellow;
    position: fixed;
    left: 500px;
    top: 150px;
    opacity: .6;
    display: none;
}

.content {
    margin-top: 20px;
    margin-left: 30px;
}

span {
    margin-left: 370px;
}